Setting timer to repeat a dos command

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Gabriel Silva 2020-2-5

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评论： Geoff Hayes 2020-2-7

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hi there!

I 've got a little problem with scripts like this one:

t = timer('TimerFcn', 'stat=false','StartDelay',10);                              
start(t)
stat=true;
while(stat==true)
  dos('dir')
  datetime
  pause(10)
end
stop(t)
delete(t) 

It works one time only or keep repeating ad infinitum. I'm using R2016a.

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Gabriel Silva 2020-2-5

Well, Geoff, it's the same timer example, but using some dos commands. I do not remove the pause. I hope this particular script to repeat 'dir' 10 times, but it gives me only one. I put a pause of 30 seconds, but then I reduce it to 10. Not working, anyway.

Geoff Hayes 2020-2-7

Gabriel - why not try a pause of 0.5? or even 1.0 seconds? I think that because you are pausing for ten seconds and because your timer expires after ten seconds (due to the StartDelay property being 10), you will only ever see dir be called once...

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